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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6009 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2008-09-27 02:55:10 +00:00
parent d1ce324f44
commit 023577a650
5 changed files with 0 additions and 0 deletions
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1383
MdeModulePkg/Universal/DebugSupportDxe/Ipf/AsmFuncs.s Normal file
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80
MdeModulePkg/Universal/DebugSupportDxe/Ipf/Ds64Macros.i Normal file
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/// @file
/// This is set of macros used in calculating offsets in the IVT.
///
/// Copyright (c) 2006, Intel Corporation
/// All rights reserved. This program and the accompanying materials
/// are licensed and made available under the terms and conditions of the BSD License
/// which accompanies this distribution. The full text of the license may be found at
/// http://opensource.org/licenses/bsd-license.php
///
/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
///
/// Module Name: Ds64Macros.i
///
///
#define EXCPT_EXTERNAL_INTERRUPT 12
#define MASK_0_4 0x000000000000001F // mask bits 0 through 4
#define SLOT0 0
#define SLOT1 1
#define SLOT2 2
#define PSR_DT 17
#define PSR_TB 26
#define PSR_RT 27
#define PSR_IS 34
#define PSR_IT 36
#define PSR_IC 13
#define PSR_I 14
#define PSR_SS 40
#define PSR_BN 44
#define PSR_RI_MASK 0x60000000000
#define EXCPT_EXTERNAL_INTERRUPT 12
#define SCRATCH_REG0 r23
#define SCRATCH_REG1 r24
#define SCRATCH_REG2 r25
#define SCRATCH_REG3 r26
#define SCRATCH_REG4 r27
#define SCRATCH_REG5 r28
#define SCRATCH_REG6 r29
#define PR_REG r30
#define B0_REG r31
// EXT_INT_OFFSET is the offset of the external interrupt entry in the IVT
#define EXT_INT_ENTRY_OFFSET 0x03000
// PATCH_ENTRY_OFFSET is the offset into the IVT of the entry that is coopted (stolen)
// for use by the handler. The entire entry is restored when the handler is
// unloaded.
#define PATCH_ENTRY_OFFSET 0x03400
// PATCH_BUNDLES is the number of bundles actually in the patch
#define NUM_PATCH_BUNDLES ((EndPatchCode - PatchCode) / 0x10)
// A hard coded branch back into the external interrupt IVT entry's second bundle
// is put here, just in case the original bundle zero did not have a branch
// This is the last bundle in the reserved IVT entry
#define FAILSAFE_BRANCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - 0x10)
// the original external interrupt IVT entry bundle zero is copied and relocated
// here... also in the reserved IVT entry
// This is the second-to-last bundle in the reserved IVT entry
#define RELOCATED_EXT_INT (PATCH_ENTRY_OFFSET + 0x400 - 0x20)
// The patch is actually stored at the end of IVT:PATCH_ENTRY. The PATCH_OFFSET
// is the offset into IVT where the patch is actually stored. It is carefully
// located so that when we run out of patch code, the next bundle is the
// relocated bundle 0 from the original external interrupt handler
#define PATCH_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCode ) - 0x20)
#define PATCH_RETURN_OFFSET (PATCH_ENTRY_OFFSET + 0x400 - ( EndPatchCode - PatchCodeRet ) - 0x20)
// PATCH_BRANCH is used only in the new bundle that is placed at the beginning
// of the external interrupt IVT entry.
#define PATCH_BRANCH (PATCH_OFFSET - EXT_INT_ENTRY_OFFSET)

29
MdeModulePkg/Universal/DebugSupportDxe/Ipf/common.i Normal file
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/// @file
/// This is set of useful macros.
///
/// Copyright (c) 2006, Intel Corporation
/// All rights reserved. This program and the accompanying materials
/// are licensed and made available under the terms and conditions of the BSD License
/// which accompanies this distribution. The full text of the license may be found at
/// http://opensource.org/licenses/bsd-license.php
///
/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
///
/// Module Name: common.i
///
///
#define NESTED_SETUP(i,l,o,r) \
alloc loc1=ar##.##pfs,i,l,o,r ; \
mov loc0=b0 ;;
#define NESTED_RETURN \
mov b0=loc0 ; \
mov ar##.##pfs=loc1 ;; \
br##.##ret##.##dpnt b0 ;;
#define MASK(bp,value) (value << bp)

586
MdeModulePkg/Universal/DebugSupportDxe/Ipf/plDebugSupport.c Normal file
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/**@file
IPF specific debug support functions
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
//
// private header files
//
#include "plDebugSupport.h"
typedef struct {
UINT64 low;
UINT64 high;
} BUNDLE;
//
// number of bundles to swap in ivt
//
#define NUM_BUNDLES_IN_STUB 5
#define NUM_IVT_ENTRIES 64
typedef struct {
BUNDLE OrigBundles[NUM_BUNDLES_IN_STUB];
VOID (*RegisteredCallback) ();
} IVT_ENTRY;
STATIC
EFI_STATUS
ManageIvtEntryTable (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN BUNDLE NewBundles[4],
IN VOID (*NewCallback) ()
);
STATIC
VOID
HookEntry (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN BUNDLE NewBundles[4],
IN VOID (*NewCallback) ()
);
STATIC
VOID
UnhookEntry (
IN EFI_EXCEPTION_TYPE ExceptionType
);
STATIC
VOID
ChainExternalInterrupt (
IN VOID (*NewCallback) ()
);
STATIC
VOID
UnchainExternalInterrupt (
VOID
);
STATIC
VOID
GetHandlerEntryPoint (
UINTN HandlerIndex,
VOID **EntryPoint
);
IVT_ENTRY IvtEntryTable[NUM_IVT_ENTRIES];
//
// IPF context record is overallocated by 512 bytes to guarantee a 512 byte alignment exists
// within the buffer and still have a large enough buffer to hold a whole IPF context record.
//
UINT8 IpfContextBuf[sizeof (EFI_SYSTEM_CONTEXT_IPF) + 512];
//
// The PatchSaveBuffer is used to store the original bundles from the IVT where it is patched
// with the common handler.
//
UINT8 PatchSaveBuffer[0x400];
UINTN ExternalInterruptCount;
EFI_STATUS
plInitializeDebugSupportDriver (
VOID
)
/*++
Routine Description:
IPF specific DebugSupport driver initialization. Must be public because it's
referenced from DebugSupport.c
Arguments:
Returns:
EFI_SUCCESS
--*/
{
SetMem (IvtEntryTable, sizeof (IvtEntryTable), 0);
ExternalInterruptCount = 0;
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
plUnloadDebugSupportDriver (
IN EFI_HANDLE ImageHandle
)
/*++
Routine Description:
Unload handler that is called during UnloadImage() - deallocates pool memory
used by the driver. Must be public because it's referenced from DebugSuport.c
Arguments:
ImageHandle - Image handle
Returns:
EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
--*/
{
EFI_EXCEPTION_TYPE ExceptionType;
for (ExceptionType = 0; ExceptionType < NUM_IVT_ENTRIES; ExceptionType++) {
ManageIvtEntryTable (ExceptionType, NULL, NULL);
}
return EFI_SUCCESS;
}
VOID
CommonHandler (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN EFI_SYSTEM_CONTEXT Context
)
/*++
Routine Description:
C routine that is called for all registered exceptions. This is the main
exception dispatcher. Must be public because it's referenced from AsmFuncs.s.
Arguments:
ExceptionType - Exception Type
Context - System Context
Returns:
Nothing
--*/
{
static BOOLEAN InHandler = FALSE;
DEBUG_CODE_BEGIN ();
if (InHandler) {
DEBUG ((EFI_D_INFO, "ERROR: Re-entered debugger!\n"
" ExceptionType == %X\n"
" Context == %X\n"
" Context.SystemContextIpf->CrIip == %X\n"
" Context.SystemContextIpf->CrIpsr == %X\n"
" InHandler == %X\n",
ExceptionType,
Context,
Context.SystemContextIpf->CrIip,
Context.SystemContextIpf->CrIpsr,
InHandler));
}
DEBUG_CODE_END ();
ASSERT (!InHandler);
InHandler = TRUE;
if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {
if (ExceptionType != EXCEPT_IPF_EXTERNAL_INTERRUPT) {
IvtEntryTable[ExceptionType].RegisteredCallback (ExceptionType, Context.SystemContextIpf);
} else {
IvtEntryTable[ExceptionType].RegisteredCallback (Context.SystemContextIpf);
}
} else {
ASSERT (0);
}
InHandler = FALSE;
}
STATIC
VOID
GetHandlerEntryPoint (
UINTN HandlerIndex,
VOID **EntryPoint
)
/*++
Routine Description:
Given an integer number, return the physical address of the entry point in the IFT
Arguments:
HandlerIndex - Index of the Handler
EntryPoint - IFT Entrypoint
Returns:
Nothing
--*/
{
UINT8 *TempPtr;
//
// get base address of IVT
//
TempPtr = GetIva ();
if (HandlerIndex < 20) {
//
// first 20 provide 64 bundles per vector
//
TempPtr += 0x400 * HandlerIndex;
} else {
//
// the rest provide 16 bundles per vector
//
TempPtr += 0x5000 + 0x100 * (HandlerIndex - 20);
}
*EntryPoint = (VOID *) TempPtr;
}
STATIC
EFI_STATUS
ManageIvtEntryTable (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN BUNDLE NewBundles[NUM_BUNDLES_IN_STUB],
IN VOID (*NewCallback) ()
)
/*++
Routine Description:
This is the worker function that installs and removes all handlers
Arguments:
ExceptionType - Exception Type
NewBundles - New Boundles
NewCallback - New Callback
Returns:
EFI_STATUS - any return other than EFI_SUCCESS indicates the request was not
satisfied.
EFI_ALEADY_STARTED - Ivt already hooked.
--*/
{
BUNDLE *B0Ptr;
UINT64 InterruptFlags;
EFI_TPL OldTpl;
//
// Get address of bundle 0
//
GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);
if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {
//
// we've already installed to this vector
//
if (NewCallback != NULL) {
//
// if the input handler is non-null, error
//
return EFI_ALREADY_STARTED;
} else {
//
// else remove the previously installed handler
//
OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);
if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {
UnchainExternalInterrupt ();
} else {
UnhookEntry (ExceptionType);
}
ProgramInterruptFlags (InterruptFlags);
gBS->RestoreTPL (OldTpl);
//
// re-init IvtEntryTable
//
SetMem (&IvtEntryTable[ExceptionType], sizeof (IVT_ENTRY), 0);
}
} else {
//
// no user handler installed on this vector
//
if (NewCallback != NULL) {
OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);
if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {
ChainExternalInterrupt (NewCallback);
} else {
HookEntry (ExceptionType, NewBundles, NewCallback);
}
ProgramInterruptFlags (InterruptFlags);
gBS->RestoreTPL (OldTpl);
}
}
return EFI_SUCCESS;
}
STATIC
VOID
HookEntry (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN BUNDLE NewBundles[4],
IN VOID (*NewCallback) ()
)
/*++
Routine Description:
Saves original IVT contents and inserts a few new bundles which are fixed up
to store the ExceptionType and then call the common handler.
Arguments:
ExceptionType - Exception Type
NewBundles - New Boundles
NewCallback - New Callback
Returns:
Nothing
--*/
{
BUNDLE *FixupBundle;
BUNDLE *B0Ptr;
//
// Get address of bundle 0
//
GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);
//
// copy original bundles from IVT to IvtEntryTable so we can restore them later
//
CopyMem (
IvtEntryTable[ExceptionType].OrigBundles,
B0Ptr,
sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB
);
//
// insert new B0
//
CopyMem (B0Ptr, NewBundles, sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB);
//
// fixup IVT entry so it stores its index and whether or not to chain...
//
FixupBundle = B0Ptr + 2;
FixupBundle->high |= ExceptionType << 36;
InstructionCacheFlush (B0Ptr, 5);
IvtEntryTable[ExceptionType].RegisteredCallback = NewCallback;
}
STATIC
VOID
UnhookEntry (
IN EFI_EXCEPTION_TYPE ExceptionType
)
/*++
Routine Description:
Restores original IVT contents when unregistering a callback function
Arguments:
ExceptionType - Exception Type
NewBundles - New Boundles
NewCallback - New Callback
Returns:
Nothing
--*/
{
BUNDLE *B0Ptr;
//
// Get address of bundle 0
//
GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);
//
// restore original bundles in IVT
//
CopyMem (
B0Ptr,
IvtEntryTable[ExceptionType].OrigBundles,
sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB
);
InstructionCacheFlush (B0Ptr, 5);
}
STATIC
VOID
ChainExternalInterrupt (
IN VOID (*NewCallback) ()
)
/*++
Routine Description:
Sets up cache flush and calls assembly function to chain external interrupt.
Records new callback in IvtEntryTable.
Arguments:
NewCallback - New Callback
Returns:
Nothing
--*/
{
VOID *Start;
Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);
IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NewCallback;
ChainHandler ();
InstructionCacheFlush (Start, 0x400);
}
STATIC
VOID
UnchainExternalInterrupt (
VOID
)
/*++
Routine Description:
Sets up cache flush and calls assembly function to restore external interrupt.
Removes registered callback from IvtEntryTable.
Arguments:
Nothing
Returns:
Nothing
--*/
{
VOID *Start;
Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);
UnchainHandler ();
InstructionCacheFlush (Start, 0x400);
IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NULL;
}
//
// The rest of the functions in this file are all member functions for the
// DebugSupport protocol
//
EFI_STATUS
EFIAPI
GetMaximumProcessorIndex (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
OUT UINTN *MaxProcessorIndex
)
/*++
Routine Description: This is a DebugSupport protocol member function. Hard
coded to support only 1 processor for now.
Arguments:
This - The DebugSupport instance
MaxProcessorIndex - The maximuim supported processor index
Returns:
Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
--*/
{
*MaxProcessorIndex = 0;
return (EFI_SUCCESS);
}
EFI_STATUS
EFIAPI
RegisterPeriodicCallback (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN EFI_PERIODIC_CALLBACK NewPeriodicCallback
)
/*++
Routine Description:
DebugSupport protocol member function
Arguments:
This - The DebugSupport instance
ProcessorIndex - Which processor the callback applies to.
PeriodicCallback - Callback function
Returns:
EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
--*/
{
return ManageIvtEntryTable (EXCEPT_IPF_EXTERNAL_INTERRUPT, NULL, NewPeriodicCallback);
}
EFI_STATUS
EFIAPI
RegisterExceptionCallback (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN EFI_EXCEPTION_CALLBACK NewCallback,
IN EFI_EXCEPTION_TYPE ExceptionType
)
/*++
Routine Description:
DebugSupport protocol member function
Arguments:
This - The DebugSupport instance
ProcessorIndex - Which processor the callback applies to.
NewCallback - Callback function
ExceptionType - Which exception to hook
Returns:
EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
--*/
{
return ManageIvtEntryTable (
ExceptionType,
(BUNDLE *) ((EFI_PLABEL *) HookStub)->EntryPoint,
NewCallback
);
}
EFI_STATUS
EFIAPI
InvalidateInstructionCache (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN VOID *Start,
IN UINTN Length
)
/*++
Routine Description:
DebugSupport protocol member function. Calls assembly routine to flush cache.
Arguments:
This - The DebugSupport instance
ProcessorIndex - Which processor the callback applies to.
Start - Physical base of the memory range to be invalidated
Length - mininum number of bytes in instruction cache to invalidate
Returns:
EFI_SUCCESS
--*/
{
InstructionCacheFlush (Start, Length);
return (EFI_SUCCESS);
}

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MdeModulePkg/Universal/DebugSupportDxe/Ipf/plDebugSupport.h Normal file
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/**@file
IPF specific debugsupport types, macros, and definitions.
Copyright (c) 2004 - 2006 Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _PLDEBUG_SUPPORT_H
#define _PLDEBUG_SUPPORT_H
#include <Uefi.h>
#include <Protocol/DebugSupport.h>
#include <Protocol/LoadedImage.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/BaseLib.h>
#include <Library/PcdLib.h>
#define DISABLE_INTERRUPTS 0UL
//
// The remaining definitions comprise the protocol members.
//
#define EFI_ISA IsaIpf
//
// processor specific functions that must be public
//
EFI_STATUS
plInitializeDebugSupportDriver (
VOID
)
/*++
Routine Description:
IPF specific DebugSupport driver initialization. Must be public because it's
referenced from DebugSupport.c
Arguments:
Returns:
EFI_SUCCESS
--*/
;
EFI_STATUS
EFIAPI
plUnloadDebugSupportDriver (
IN EFI_HANDLE ImageHandle
)
/*++
Routine Description:
Unload handler that is called during UnloadImage() - deallocates pool memory
used by the driver. Must be public because it's referenced from DebugSuport.c
Arguments:
ImageHandle - Image handle
Returns:
EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
--*/
;
//
// Assembly worker functions and data referenced from plDebugSupport.c
//
VOID *
GetIva (
VOID
)
/*++
Routine Description:
C callable function to obtain the current value of IVA
Arguments:
None
Returns:
Current value if IVA
--*/
;
VOID
HookStub (
VOID
)
/*++
Routine Description:
HookStub will be copied from it's loaded location into the IVT when
an IVT entry is hooked.
Arguments:
None
Returns:
None
--*/
;
VOID
ChainHandler (
VOID
)
/*++
Routine Description:
Chains an interrupt handler
Arguments:
None
Returns:
None
--*/
;
VOID
UnchainHandler (
VOID
)
/*++
Routine Description:
Unchains an interrupt handler
Arguments:
None
Returns:
None
--*/
;
UINT64
ProgramInterruptFlags (
IN UINT64 NewInterruptState
)
/*++
Routine Description:
C callable function to enable/disable interrupts
Arguments:
NewInterruptState - New Interrupt State
Returns:
Previous state of psr.ic
--*/
;
VOID
InstructionCacheFlush (
IN VOID *StartAddress,
IN UINTN SizeInBytes
)
/*++
Routine Description:
Flushes instruction cache for specified number of bytes
Arguments:
StartAddress - Cache Start Address
SizeInBytes - Cache Size
Returns:
None
--*/
;
EFI_STATUS
EFIAPI
GetMaximumProcessorIndex (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
OUT UINTN *MaxProcessorIndex
)
/*++
Routine Description: This is a DebugSupport protocol member function. Hard
coded to support only 1 processor for now.
Arguments:
This - The DebugSupport instance
MaxProcessorIndex - The maximuim supported processor index
Returns:
Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
--*/
;
EFI_STATUS
EFIAPI
RegisterPeriodicCallback (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN EFI_PERIODIC_CALLBACK PeriodicCallback
)
/*++
Routine Description:
DebugSupport protocol member function
Arguments:
This - The DebugSupport instance
ProcessorIndex - Which processor the callback applies to.
PeriodicCallback - Callback function
Returns:
EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
--*/
;
EFI_STATUS
EFIAPI
RegisterExceptionCallback (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN EFI_EXCEPTION_CALLBACK NewHandler,
IN EFI_EXCEPTION_TYPE ExceptionType
)
/*++
Routine Description:
DebugSupport protocol member function
Arguments:
This - The DebugSupport instance
ProcessorIndex - Which processor the callback applies to.
NewCallback - Callback function
ExceptionType - Which exception to hook
Returns:
EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
--*/
;
EFI_STATUS
EFIAPI
InvalidateInstructionCache (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN VOID *Start,
IN UINTN Length
)
/*++
Routine Description:
DebugSupport protocol member function. Calls assembly routine to flush cache.
Arguments:
This - The DebugSupport instance
ProcessorIndex - Which processor the callback applies to.
Start - Physical base of the memory range to be invalidated
Length - mininum number of bytes in instruction cache to invalidate
Returns:
EFI_SUCCESS
--*/
;
VOID
CommonHandler (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN EFI_SYSTEM_CONTEXT Context
)
/*++
Routine Description:
C routine that is called for all registered exceptions. This is the main
exception dispatcher. Must be public because it's referenced from AsmFuncs.s.
Arguments:
ExceptionType - Exception Type
Context - System Context
Returns:
Nothing
--*/
;
#endif